#include <stdio.h>

int main(void)
{  
  int a,b;
  printf("enter two numbers:");
  scanf("%d %d",&a,&b);
  printf("add :%d\n",add(a,b));
  printf("sub:%d\n",sub(a,b));
  printf("mul:%d\n",mul(a,b));
  printf("div:%lf\n",div(a,b));
return 0;
}


